Eccentric.



' PATENTBD JUNE so, 1903. M. TOPLIFF.

BGGENTRIG.

APPLICATION FILED JAN. 20,1903.

H0 MODEL.

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UNITED STATES Patented June 30, 1903.

MYRON TOPLIFF, OF W'ALLACE, IDAHO.

ECCENTRIC.

SPECIFICATION forming part of Letters Patent N 0. 732,606, dated June30, 1903.

Application filed January 20, 1903. Serial No. 139,837. (No model.)

.To all whom it may concern.-

Be it known that I, MYRON .TOPLIFF, a citizen of the United States,residing at Wallace, county of Shoshone, and State of Idaho, haveinvented certain new and useful Improvements'in Eccentrics, of which thefollowing is a specification.

My invention relates to eccentrics, and more particularly to eccentricconnections.

The object of the present inventionis-the with the eccentric in a novelmanner and dis-.

penses with the eccentric-strap ordinarily used, such as set forth indetail hereinafter, while the novel features are recited in the appendedclaims.

In the accompanying drawings, Figure l is a side elevation; Fig. 2, asection on line a: :1: of Fig. 1, and Figs. 3, 4, and 5 details of therollers and their bearings.

The numeral 1 designates an eccentric which has a rim 2 ground smooth onits outer and inner faces. The eccentric-rod is shown at 4 and is guidedin stationary bushing 5, and this red ins eadof being jointed, as isthe' case with t e ordinary eccentric-rod, is made rigid throughout itsextent, and it is provided with a two-part yoke 6, the movable member ofwhich is secured by bolt 7', said yoke being adapted to straddle the rimof the eccentric. curved or angular, as preferred.

The numeral 8 designates a roller of substantially the same width as theeccentricrim 2 and adapted to bear against the outer face of said rim.This roller has cone shaped countersinks in its ends, which receive andhave a bearing on cone-shaped members 9 and 10, said members havingscrew-threads 11 and being threaded into the members of the yoke 6 andprovided with clamping-nuts 12 to hold the members against turning. Theouter ends of the members'9 and 10 are made square for the applicationof a suitable The members of the yoke may be tool to adjust them tocompensate for wear and to give a proper bearing on the roller 8. Arod13 passes through the roller 8 and the members 9 and 10 and is providedwith nuts 14 on its screw -threaded ends. This rod strengthens the yokeand centers the parts and also provides a bearing for the roller 8. Theends of the yoke members have slots 15, in which are adjustable blocks16, capable of adjustment by the screws 17, which have clamping-nuts 18to secure the blocks where adjusted. Threaded in the blocks areconeshaped bearing members 19, on which are j ournaled the rollers20,which bear against the under side of the rim 2 on opposite sides ofthe spokes or spider of the eccentric. The members 19 have squared ends,so they can be easily screwed into the blocks, and the nuts 21 areprovided for holding them. By adjusting the blocks in the slots therollers 20 are made to bear against the under side of the eccentric-rim2, while the roller 8 bears againstthe outer face of said rim. There istherefore no possible looseness to the connection, while the friction isreduced to a minimum as the eccentric turns and the eccentricrod simplyreciprocates and hence there is no necessity for a joint in theeccentric-rod, which is a decided advantage, as the friction of such ajoint is obviated. To compensate for wear, the coned members 9, 10, and19 same time the arrangement of the rollers gives a balanced action ofcooperation between the eccentric-rod and the eccentric, which preventsany torsional effects and insures an even action and wear.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. The combination with an eccentric and eccentric-rod, of a rollercarried by the rod and bearing against the outer face of theoccentric-rim, and independent rollers carried by the rod and bearingagainst the under side of the eccentric-rim on opposite sides of the webor spider of the eccentric.

2. The combination with an eccentric having a rim, of an eccentric-rod,a roller carried by the rod and of substantially the width of theeccentric-rim and bearing against the outer face of said rim, andindependent rollers carried by the eccentric-rod and bearing against theunder face of the eccentric-rim on opposite sides of the web or spiderof the eccentric.

3. The combination with an eccentric having a rim, of an eccentric-rod,rollers carried by the eccentric-rod and bearing against the inner andouter faces of the eccentric-rim, and means for adjusting said rollerstoward and away from each other.

4. The combination with an eccentric having a rim, of an eccentric-rod,rollers carried by the eccentric-rod and bearing against the outer andinner faces, respectively, of the eccentric-rim, said rod having a slot,and a bearing-pin for one of said rollers, said pin being movable in theslot, whereby the rollers can be relatively adjusted toward and awayfrom each other.

5. The combination with an eccentric having a rim, of an eccentric-rod,a roller carried by the rod and bearing against the eccentricrim, meansto hold the roller in contact with the eccentric-rim and means forrelatively adjusting the roller and holding means.

6. The combination with an eccentric having a rim, of an eccentric-rod,a coned pin carried by said rod, an interiorly-coned roller on said pinand bearing against the eccentricrim, and means to hold said roller incontact. with the rim.

7. The combination with an eccentric having a rim, of an eccentric-rodhaving a yoke straddling the rim of the eccentric, a roller carried bythe yoke and bearing against the outer face of the eccentric-rim, androllers carried by the respective arms of the yoke and bearing againstthe underside of the cocentric-rim on opposite sides of the Web orspider of the eccentric.

In testimony whereof I hereunto ai'fix my signature in presence of twoWitnesses.

MYRON TOPLIFF.

Witnesses:

ALBERT H. FEATHERSTONTJ, GEORGE R. TRASK.

